| Onan heads decarbon [message #116018] |
Mon, 21 February 2011 19:41  |
Dennis S
Messages: 3046
Registered: November 2005
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My 73 Painted Desert, 23ft, has a 4kw Onan -- no hour meter but appears to have had low hours -- I thought it ran very well and rather quietly. This weekend however I replaced a few gaskets, did some cleaning and decided to decarbon the heads.
The first one did not look too bad, but the second one had a lot of build up. I did the work at the mini-storage lot, scraping first and then using a soft brass brush in a battery powered hand drill. I was very pleased with the results -- runs even more quietly, and very steady -- the small bit of vibration that I previously could feel while in the back of the coach was gone.
Pertronix in the near future -- will be interesting to see how much smoother it can be.
Just fyi.
Dennis
Dennis S
73 Painted Desert 230
Memphis TN Metro
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